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4733 ORO (1982 HB2)
Classification: Main-belt Asteroid          SPK-ID: 2004733
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07302603729930814 6.6675e-08  
a 2.185414570049601 1.0375e-08 AU
q 2.025822404142708 1.4714e-07 AU
i 4.715996888656736 6.382e-06 deg
node 43.05133570863436 6.5792e-05 deg
peri 158.1137747931609 7.5055e-05 deg
M 48.56608990307998 3.7465e-05 deg
tp 2456841.304855744996
(2014-Jul-02.80485574)
0.00012277 JED
period 1180.046654902041
3.23
8.4032e-06
2.301e-08
d
yr
n .3050726837829005 2.1724e-09 deg/d
Q 2.345006735956495 1.1133e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      22852 days (62.57 yr)  
   first obs. used      1951-11-30  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51845  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:01:56  

Additional Information
 Earth MOID = 1.02429 AU 
 T_jup = 3.669 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO253395  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4733 ORO (1982 HB2)          Discovered 1982-Apr-19 by Oak Ridge Obs. at Harvard
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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